A High Seas Primer From the Introduction: Avast, ye lily-livered landlubber, and welcome to the third Amtgard Seven Expansion Set, Nautical Nights: A High Seas Primer. This manual sets off for uncharted waters and leaves the safe haven of regular battlegames fading into the distant horizon. If your group has ever dreamt of pirate duels, boarding parties, mermaid lagoons or buried treasure, then this is the book to help take you there.